Representative image. Final geometry, finish and coating are confirmed from your drawing.
Reference · TO-DBL
Cemented Achromatic Doublet
Lenses
A two-element cemented lens for color-corrected imaging and focusing, quoted from the prescription, cement and centration requirements.
Typical values
| Parameter | Reference |
|---|---|
| Reference diameter | 12.7 / 25.4 mm; custom |
| Reference EFL | 25 / 50 / 100 mm; custom |
| Reference materials | N-BK7 + N-SF11 or H-K9L + ZF2 |
| Reference coating | BBAR 400–700 nm; per drawing |
| Centration | By drawing review |
| Transmitted wavefront | By drawing review |
This is a drawing-led item. The reference values below help frame the discussion; the pattern, groove or spectral data on your drawing controls the quotation.
A cemented doublet combines a positive low-dispersion element with a negative high-dispersion element to reduce chromatic focal shift. The prescription, cement, centration and transmitted wavefront should be reviewed together. The configuration below is a reference starting point, not a fixed catalog part.
- Imaging objectives
- Color-corrected focusing
- Instrument optics
- Cemented two-element design
- N-BK7 / N-SF11 or H-K9L / ZF2
- BBAR coating
- Centration review
What to include in the RFQ
The following inputs let us quote the geometry, coating and inspection route without guessing.
Request a quote for this component- 01Full prescription or drawing with radii, thicknesses and air gaps
- 02Substrate pair and cement requirement
- 03EFL, back focal length and transmitted wavefront target
- 04Centration and mount reference
- 05Coating curve and wavelength band
- 06Prototype and annual quantity
TO-PCX-NBK7
N-BK7 Plano-Convex Lens
A single-element positive lens for focusing or collimating light, supplied in N-BK7, H-K9L or UV fused silica to your drawing.
View specification
TO-BCX-NBK7
N-BK7 Biconvex Lens
A symmetric positive lens for imaging, relay and focusing where both conjugates are finite or the layout needs a compact element.
View specification
TO-PCV-NBK7
N-BK7 Plano-Concave Lens
A single-element negative lens for beam expansion, divergence and compensating optical power in a compact layout.
View specification